What does the blessed person do? He/she delights in the LORD's instruction! This 5m episode serves as an introduction to the entire book of Psalms. It contrasts the only two kinds of people recognized by God, each with a distinct set of life principles: (1) The godly, who are characterized by righteousness, love, obedience to God's Word, and separation from fellowship with the world; (2) the ungodly, who represent the ways and counsel of the world, who do not abide in God's Word, and who consequently have no part in the assembly of God's people. The godly person is known and blessed by God, but the ungodly person has no part in God's kingdom (1 Cor. 6:9) and will perish.
The separation between these two kinds of people will exist throughout redemptive history and on into eternity.
The first verse of the book of Psalms emphasizes the distinction between the righteous and the wicked. True believers can be distinguished by the things they do not do, the places they do not go, and the company they do not keep. No person can experience God's blessing without turning from those things that are harmful or destructive.
Take a listen to the thought from the TTE commentary in regard to how to become happy or whether would you rather be blessed.
Elder Hayes
TTE/CSB/FL